Bailly
ου (ὁ) [ῠ] Morykhos,
mauvais poète tragique, AR.
Ach. 887, Pax 1008, etc.
Étym. μορύσσω.
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LSJ
ὁ, epith. of dionysus in Sicily, from μορύσσω, because his face was smeared with wine lees at the vintage; prov., μωρότερος Μορύχου Sophr. 94. as Adj. only in Adv. Comp. μορυχώτερον more obscurely, v.l. in Arist. Metaph. 987a10, cf. Alex.Aphr. ad 10 c.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)